133365620025 has 144 divisors (see below), whose sum is σ = 269404042752. Its totient is φ = 62481024000.

The previous prime is 133365619987. The next prime is 133365620027. The reversal of 133365620025 is 520026563331.

133365620025 is a `hidden beast` number, since 1 + 3 + 3 + 3 + 6 + 5 + 620 + 0 + 25 = 666.

It is not a de Polignac number, because 133365620025 - 2⁷ = 133365619897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133365620027) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 93066709 + ... + 93068141.

It is an arithmetic number, because the mean of its divisors is an integer number (1870861408).

Almost surely, 2^133365620025 is an apocalyptic number.

133365620025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133365620025 is an abundant number, since it is smaller than the sum of its proper divisors (136038422727).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133365620025 is a wasteful number, since it uses less digits than its factorization.

133365620025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704 (or 2696 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 133365620025 in words is "one hundred thirty-three billion, three hundred sixty-five million, six hundred twenty thousand, twenty-five".